Under certain circumstances, special conditions are required to operate the aircraft, for example for maintenance reposition fligth or a check flight. A non EASA aircraft manufacturer may issue No techical objection or similar statement that requires a coverage by a EASA DOA organisation.

This may need to be processed by a DOA organisation before it can be presented to EASA or local office for the application for a Permit to Fly.

Modification of a Rockwell Collins, Inc. Data Base Unit (DBU)